Reclosable package
The present invention is related to a reclosable flow pack comprising one or more fin seal(s) ( 30 ) and one or more cross-seal(s) ( 31 ), said flow pack comprising a cold-seal adhesive pattern ( 11, 301, 302, 401, 402 ) forming a seal between a first ( 3 ) and a second ( 4 ) sealing portion, the cold-seal adhesive pattern ( 301, 401 ) of the first portion being only partly in register with the cold-seal adhesive pattern ( 302, 402 ) of the second portion, the bonding force of the cold-seal adhesive to the first ( 3 ) and the second ( 4 ) sealing portions being lower than the bonding force within the cold-seal adhesive on the portions in register ( 7, 100, 101 ), so that the cold-seal adhesive on the portions of the cold-seal adhesive patterns in register is separated from the first or from the second sealing portion when the seal is opened.
1. A reclosable flow pack comprising one or more fin seal(s) ( 30 ) and one or more cross-seal(s) ( 31 ), said flow pack comprising a cold-seal adhesive pattern ( 11 , 301 , 302 , 401 , 402 ) forming a seal between a first ( 3 ) and a second ( 4 ) sealing portion, the cold-seal adhesive pattern ( 301 , 401 ) of the first portion ( 1 ) being only partly in register with the cold-seal adhesive pattern ( 302 , 402 ) of the second portion ( 2 ), the bonding force of the cold-seal adhesive to the first ( 3 ) and the second ( 4 ) sealing portions being lower than the bonding force within the cold-seal adhesive on the portions in register ( 7 , 100 , 101 ), so that the cold-seal adhesive on the portions of the cold-seal adhesive patterns in register is separated from the first or from the second sealing portion when the seal is opened.
2. The reclosable package according to claim 1 , characterized in that the area in register represents 80% or less.
3. The reclosable package according to claim 1 , characterized in that the one or more fin seal(s) comprise(s) coldseal-free flaps.
4. The reclosable package according to claim 1 , characterized in that said flow pack comprises a continuous seal line ( 12 ) around for ensuring air tightness.
5. The reclosable package according to claim 1 , characterized in that said flow pack comprises corona-treated, oriented polyolefin films.
6. The reclosable package according to claim 1 , characterized in that the cold seal comprises a natural latex or synthetic latex.
7. The reclosable package according to claim characterized in that the cold seal comprises at least 50% of said natural or synthetic latex.
8. The reclosable package according to claim 1 , characterized in that the cold seal contains at least one acrylic polymer or copolymer.
9. The reclosable package according to claim 1 , characterized in that the cold seal contains at least one styrene acrylic polymer or copolymer, preferably two different types thereof.
10. The reclosable package according to claim 1 , characterized in that the adhesion strength of the cold seal is comprised between 2 and 8N/25 mm.
11. The reclosable package according to claim 1 , characterized in that the area in register represents 70% or less.
12. The reclosable package according to claim 1 , characterized in that the area in register represents 50% or less.
13. The reclosable package according to claim 6 , characterized in that the cold seal comprises at least 70% of said natural or synthetic latex.